It soon became clear that the three Orions were attempting to manipulate members of the crew to facilitate Enterprise's capture. DoctorPhlox discovered that Orion females produce extremely potent pheromones, which caused the males of the crew to display increased aggression, and made them extremely susceptible to suggestion. D'Nesh was able to manipulate CommanderKelby into sabotagingEnterprise's warp engines, leaving them unable to escape before Harrad-Sar's arrival. When Harrad-Sar finally did return, he revealed to Archer that the females were, in fact, in control, and he was simply carrying out their wishes. Harrad-Sar used a grappler to capture and tow Enterprise, but his ship was disabled due to the efforts of Commanders Tucker and T'Pol, who were unaffected by the Orions' pheromones due to a telepathic connection the two of them shared. (ENT: "Bound")